Senator Wendy Davis, center left, with her daughters Dru Davis, left, and Amber Davis, with Wendy's friend Will Wynn, former Mayor of Austin, after she announced her candidacy for Texas Governor at W.G. Thomas Coliseum in Haltom City, TX, Oct. 3, 2013. less

Senator Wendy Davis, center left, with her daughters Dru Davis, left, and Amber Davis, with Wendy's friend Will Wynn, former Mayor of Austin, after she announced her candidacy for Texas Governor at W.G. Thomas ... more

Protestors line the street to the area where Senator Wendy Davis will announce her candidacy for Texas Governor at W.G. Thomas Coliseum in Haltom City, TX, Oct. 3, 2013.

Protestors line the street to the area where Senator Wendy Davis will announce her candidacy for Texas Governor at W.G. Thomas Coliseum in Haltom City, TX, Oct. 3, 2013.

Photo: Bob Owen, San Antonio Express-News

Protestors line the street to the area where Senator Wendy Davis... Photo-5272990.71411 - San Antonio Express-News

Image 21 of 46

Mirtha de la Torre cheers during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Mirtha de la Torre cheers during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat ... more

Photo: Eric Gay, Associated Press

Mirtha de la Torre cheers during an announcement watch party for... Photo-5273380.71411 - San Antonio Express-News

Image 22 of 46

Madeleine Dewar wears a home-made button to supporting Sen. Leticia Van DePutte and Sen. Wendy Davis for higher office during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Madeleine Dewar wears a home-made button to supporting Sen. Leticia Van DePutte and Sen. Wendy Davis for higher office during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in ... more

Wendy Davis supporters listen to her speak at a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis formally announced her campaign to run for Texas governor (AP Photo/LM Otero)

Wendy Davis supporters listen to her speak at a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis formally announced her campaign to run for Texas governor (AP Photo/LM Otero)

Photo: LM Otero, Associated Press

Wendy Davis supporters listen to her speak at a rally Thursday,... Photo-5273528.71411 - San Antonio Express-News

Image 27 of 46

A supporter holds a "Wendy Davis for Governor" sticker during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

A supporter holds a "Wendy Davis for Governor" sticker during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, ... more

Texas Sen. Leticia Van DePutte speaks during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Texas Sen. Leticia Van DePutte speaks during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the ... more

Texas Sen. Leticia Van DePutte, center, cheers during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Texas Sen. Leticia Van DePutte, center, cheers during an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming ... more

Supporters gather for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Supporters gather for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an ... more

Photo: Eric Gay, Associated Press

Supporters gather for an announcement watch party for State Sen.... Photo-5273533.71411 - San Antonio Express-News

Image 32 of 46

Texas Sen. Leticia Van DePutte, center, takes a photo of herself and others gathered for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Texas Sen. Leticia Van DePutte, center, takes a photo of herself and others gathered for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced ... more

Sen. Wendy Davis, D-Fort Worth, signs autographs and poses for photos for supporter after a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis formally announced her campaign to run for Texas governor Thursday. (AP Photo/LM Otero) less

Sen. Wendy Davis, D-Fort Worth, signs autographs and poses for photos for supporter after a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis formally announced her campaign to run for Texas governor ... more

Madeleine Dewar sells political buttons to supporters gathered for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for governor, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/Eric Gay) less

Madeleine Dewar sells political buttons to supporters gathered for an announcement watch party for State Sen. Wendy Davis, Thursday, Oct. 3, 2013, in San Antonio. Davis formally announced her campaign for ... more

People hold signs protesting against State Sen. Wendy Davis as her supporters line up in the background outside the venue hosting a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis was expected to formally announce her campaign for governor Thursday, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/LM Otero) less

People hold signs protesting against State Sen. Wendy Davis as her supporters line up in the background outside the venue hosting a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis was expected to ... more

Photo: LM Otero, Associated Press

People hold signs protesting against State Sen. Wendy Davis as her... Photo-5272985.71411 - San Antonio Express-News

Image 45 of 46

Davonia Leach of Burleson, Texas, holds a sign protesting against State Sen. Wendy Davis outside the venue hosting a rally Thursday, Oct. 3, 2013, in Haltom City, Texas. Davis was expected to formally announce her campaign for governor Thursday, becoming the first Democrat to make an official bid for a statewide office. (AP Photo/LM Otero) less